堇青石

jǐnqīngshí

cordierite

Wiktionary

Entry Composition

=1 堇 jǐn
  1. clay
  2. old variant of 仅 jǐn
  3. violet (plant)
=1 堇 qín
  1. (obsolete) clay
  2. clay
2 青石 qīngshí
  1. bluestone
  2. limestone (colloquial)